If high stakes matches in large tournaments were getting screwed over by tripping into charged Fsmashes and we (the smash community) cannot find a way around it, I would support this idea. As it stands, tripping is added randomness in a ruleset that strives for as little randomness as possible to allow the best player to win consistently. Unless depth is somehow added by keeping tripping (future advanced techniques or one to prevent it's negative effects? Probably just wishful thinking), why the hell keep it in.
If tripping could be turned off through AR, only one disc would be needed for an entire tournament, so it's not like everyone would have to go out and buy it. Still a hassle, sure, but if tripping becomes THAT much of a problem, go through with it.
... But really, it would eliminate tripping johns. Which I can see myself doing a lot in the future having played the game a little.